LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Buick
>>
2003
>>
Century Custom
>>
Repair and Diagnosis (Single Page)
>>
Engine Performance
>>
System
>>
Engine Controls Self-Diagnostics - 3.1L Engine
>>
Diagnostic Tests
>>
DTC P0404: EGR Open Position Performance
>>
Conditions For Running Test
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Conditions For Running Test
The Ignition 1 Signal parameter is 11-18 volts.
The EGR valve is commanded to open.